My son just went to the army, the army squad leader sent me a letter, I want to how to reply to the letter

Hello, this is an old tradition in the army, the new year is coming, the new recruit squad leader will be required to send a letter to the new recruit's family, say the new recruit's performance and wish a happy new year and so on. You can return some - thank you for the leadership concern, let your son in the army to do a good job, strive to join the party soon, do not think of home and so on. I wish you a happy new year~